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2 years ago

Four more than three times a number, is less than 30. Which of the following is not a solution?

Mathematics

2 answers:

maxonik [38]2 years ago

8 0

Answer:

Step-by-step explanation:

Tasya [4]2 years ago

7 0

12.
12x3 is already 36, more than 30..

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Find BD???????????????

Trava [24]

See the attached picture:

5 0

3 years ago

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F(x) = 9x - x2 + 3x F(1) =

mojhsa [17]

Answer:

f(1) = 10

Step-by-step explanation:

Here you can just replace any x with 1.

f(1) = 9(1) - (1)2 + 3(1)

4 0

3 years ago

X + y = 152, 8.5x + 12y = 1,656 How many hats were sold?

Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

$x+y = 152\\8.5x+12y=1656$

From equation 1:

$x = 152-y$

Putting the value of y in equation 2

$8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104$

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

$x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48$

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0

2 years ago

Is this figure an example of a line

ivann1987 [24]

Answer:

No , It has two endpoints.

Explanation: A line segment has two end points with a definite length.

A straight line has neither starting nor end point and is of infinite length.

5 0

2 years ago

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5) Jeff has a set monthly housing budget of $812. If Jeff is in an 18% tax bracket and his

Greeley [361]

Answer:

2.406%

Step-by-step explanation:

28600*18%=5148

$5148-28600=$23,452

$23452/12 months=$1954.33 a month take home

1954.33/812=2.406%

6 0

3 years ago